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Staying healthy to a ripe old age

Scientists are finding ways to tinker with the biological age of cells so that we can remain healthier, longer

An image of human cells (above). When cells divide and multiply, it is natural for some of the DNA at the telomeres to be lost, resulting in shortening of the telomeres. Once the telomere length is critically shortened, the cell will undergo destruction.

HUMAN life expectancy or longevity has always been measured by chronological age, but what is equally important is the biological or physiological age. In the past two centuries, better living standards and significant improvement in healthcare have contributed to more than doubling of human...

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